Honest question: If every player/class/job is equal,who is unique? (Gameplay topic)

[Fyce]

@OP: It depends of the amount of details and precision you want.
I can ask you what sets apart a cat from a dog and debate with you by saying that they are both fluffy animals with 4 paws and a tail, therefore they are the same.
If, for you, a ranged DPS is ultimately the same thing as a melee DPS, I can say that typing on a forum is the same thing as playing a video game on PC since you press buttons on your keyboard to do both.